[linux-lvm] Beginner Questions

["Joseph L. Casale" <jcasale ActiveNetwerx com>]

Hi,
I have Fedora Core 7 with  LVM version: 2.02.24 (2007-03-19), Library version: 1.02.17 (2007-01-29) and  Driver version: 4.11.0 setup.

I have two hardware raid cards each with one array partitioned fully at 799.9GB and 1499.9GB. When I try run to pvcreate /dev/sdb1 /dev/sdc1 it creates the pvs and when I run pvdisplay I get this:

 

  --- Physical volume ---

  PV Name               /dev/sdb1

  VG Name               name

  PV Size               745.00 GB / not usable 3.67 MB

  Allocatable           yes

  PE Size (KByte)       4096

  Total PE              190718

  Free PE               190718

  Allocated PE          0

  PV UUID               yQyVCe-tiS4-Ma1E-hilJ-niuG-KXL9-jkKVIk

 

  --- Physical volume ---

  PV Name               /dev/sdc1

  VG Name               name

  PV Size               1024.00 GB / not usable 8192.00 EB

  Allocatable           yes

  PE Size (KByte)       4096

  Total PE              357626

  Free PE               357626

  Allocated PE          0

  PV UUID               PURHhY-Lo1T-5bif-HjGP-dP3o-NVTs-71ZKUm

 

Why is some space “not usable”?

 

Thanks!
jlc